Question

The probability of getting an even number when a fair dice is rolled once is
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Answer 1

Answer:

3/6=> 1/2.

no. of possible outcomes is 3

total no. of outcomes is 6

therefore probability of getting an even no. is

=> 3/6 =>1/2

Answer 2

The sample space has 6 possible outcomes-

S={1,2,3,4,5,6}.

Let all outcomes are equally likely(fair dice).

Hence Probability of any one outcome occurring= 1/6.

The event that we get that an even number on tossing the die can occur in 3 possible ways.

Let E denote this event.

E={2,4,6}

Now P(E)= 3× 7= 21